Not changing parts you know are bad qualifies as PPM. That stands for poor maintenance. Replace them and repack the wheel bearings, check the hoses, pads and change the brake fluid. You won't have to mess with that system for several more years based on how many miles you're putting on the car.

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.